Radio. interference of signals between two stations on the same or adjacent frequencies.
Computers. a technique for locating data in a file by applying a transformation, usually arithmetic, to a key.

Origin of hashing




a dish of diced or chopped meat and often vegetables, as of leftover corned beef or veal and potatoes, sautéed in a frying pan or of meat, potatoes, and carrots cooked together in gravy.
a mess, jumble, or muddle: a hash of unorganized facts and figures.
a reworking of old and familiar material: This essay is a hash of several earlier and better works.
Computers. garbage(def 7).
Radio and Television Slang. electrical noise on a radio or snow in a television picture caused by interfering outside sources that generate sparking.

verb (used with object)

to chop into small pieces; make into hash; mince.
to muddle or mess up: We thought we knew our parts, but when the play began we hashed the whole thing.
to discuss or review (something) thoroughly (often followed by out): They hashed out every aspect of the issue.

Verb Phrases

hash over, to bring up again for consideration; discuss, especially in review: At the class reunion they hashed over their college days.

Origin of hash

1645–55; < French hacher to cut up, derivative of hache ax, hatchet
Related formsun·hashed, adjective

Synonyms for hash

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hashing

Contemporary Examples of hashing

Historical Examples of hashing

  • Here there is a troop of cooks, their garments girded like soldiers for the battle, hashing and steaming.

    The Makers of Modern Rome

    Mrs. (Margaret) Oliphant

  • Besides this, there was nothing new; merely a hashing up of the two great trials at Aix and Loudun.

  • "Verehas we hare honly servants of the ke veen;" suggested No. 2, hashing his mistress's English.

  • It's very easy for you to say hash it; but I know what a joint loses in hashing: it's a day's dinner the less, if it's a bit.

  • But you can see how my telling her would—oh well there isn't much percentage in hashing it over.

    Young People's Pride

    Stephen Vincent Benet

British Dictionary definitions for hashing




a dish of diced cooked meat, vegetables, etc, reheated in a sauce
something mixed up
a reuse or rework of old material
make a hash of informal
  1. to mix or mess up
  2. to defeat or destroy
settle someone's hash or fix someone's hash informal to subdue or silence someone

verb (tr)

to chop into small pieces
to mix or mess up

Word Origin for hash

C17: from Old French hacher to chop up, from hache hatchet




slang short for hashish



hash mark


the character (#) used to precede a number
this sign used in printing or writing to indicate that a space should be inserted
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for hashing



short for hashish, 1959.



"a stew," 1660s, from hash (v.). Meaning "a mix, a mess" is from 1735.



1650s, "to hack, chop into small pieces," from French hacher "chop up," from Old French hache "ax" (see hatchet). Hash browns is short for hash browned potatoes (1917), with the -ed omitted, as in mash potatoes. The hash marks on a football field were so called 1960s, from similarity to hash marks, armed forces slang for "service stripes on the sleeve of a military uniform" (1909), which supposedly were called that because they mark the number of years one has had free food (hash (n.1)) from the Army; but perhaps there is a connection with the noun form of hatch (v.2).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for hashing




The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with hashing


In addition to the idiom beginning with hash

  • hash over

also see:

  • make a hash of
  • settle someone's hash
  • sling hash
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.